Thoracic drainage tube



FIG. 1 is a side elevation view of a thoracic drainage tube, embodying my new design, the opposite side elevation view being identical thereto;

FIG. 2 is a rear elevation thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a thoracic drainage tube, as shown and described. 